(19)
(11) EP 4 372 595 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.08.2024 Bulletin 2024/35

(43) Date of publication A2:
22.05.2024 Bulletin 2024/21

(21) Application number: 24168535.3

(22) Date of filing: 10.12.2020
(51) International Patent Classification (IPC): 
G06F 21/64(2013.01)
H04W 4/48(2018.01)
H04L 9/40(2022.01)
H04L 67/12(2022.01)
 H04L 9/32(2006.01)
H04L 12/40(2006.01)
H04L 9/12(2006.01)
(52) Cooperative Patent Classification (CPC):
H04L 9/3242; H04L 63/123; H04L 67/12; H04W 4/48; G06F 21/64; H04L 2209/84; H04L 12/40189; H04L 12/40013; H04L 12/40143; H04L 2012/40215; H04L 9/12; H04L 2012/40273; H04L 9/3273
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 10.12.2019 IT 201900023544

(62) Application number of the earlier application in accordance with Art. 76 EPC:
20841760.0 / 4073675

(71) Applicant: FPT Industrial S.p.A.
10156 Torino (IT)

(72) Inventors:
  • COLUCCI, Francesco Alessandro
    10134 Torino (IT)
  • MAZZURCO, Alessandro
    10141 Torino (IT)

(74) Representative: Studio Torta S.p.A. 
Via Viotti, 9
10121 Torino
10121 Torino (IT)

   


(54) METHOD AND SYSTEM FOR DATA EXCHANGE ON A NETWORK TO ENHANCE SECURITY MEASURES OF THE NETWORK, VEHICLE COMPRISING SUCH SYSTEM


(57) A method for data exchange on a communication network (2), operating according to a protocol, and including a transmission bus (4), a first node (E1) and a second node (EN). The first node carries out the steps of: constructing a first and a second data frame (10) which transport first and second information data (Data1, Data2); calculating a first message authentication code (MAC1) as a function of the first and the second information data; constructing a third data frame (20) which transports the first message authentication code (MAC1); transmitting all of the data frames thus constructed. The second node carries out the steps of: receiving the first, the second and the third data frames; extracting the first and the second information data and the first message authentication code; calculating a second message authentication code (MACEXP) as a function of the first and the second information data extracted; comparing the message authentication code extracted with the message authentication code calculated in order to verify the identity thereof.







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Search report